Fetching details from the dictionary...
account number (bank, etc.)
口座番号を書類に記入してください。
Please fill in your account number on the form.
口座番号を間違えて振り込んだ。
I transferred money to the wrong account number.
個人情報なので口座番号は他人に教えないほうがいい。
Since it's personal information, you shouldn't share your account number.